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• Getting ssh to execute a command in the background on target machine

  - by dagorym

  This is a follow-on question to the How do you use ssh in a shell script? question. If I want to execute a command on the remote machine that runs in the background on that machine, how do I get the ssh command to return? When I try to just include the ampersand (&) at the end of the command it just hangs. The exact form of the command looks like this: ssh user@target "cd /some/directory; program-to-execute &" Any ideas? One thing to note is that logins to the the target machine always produce a text banner and I have ssh keys set up so no password is required.

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• Html Birthdate input usability best practice

  - by Andrew Florko

  Hello everybody, I am going to implement standard functionality - birthdate input on web form for PC. There are lots of interfaces how to implement this. Date picker (OMG, I can't stand picking date with it. Too many clicks required) 3 Dropdown lists. Day, Month, Year. (I am not very fond of it though - they are too long) Straightforward input: DD.MM.YYYY (My choice, but I am programmer, not a customer) ... some more What kind of input do you prefer? What is the worst one for your opinion?

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• How to tell binary from text files in linux

  - by gabor

  The linux file command does a very good job in recognising file types and gives very fine-grained results. The diff tool is able to tell binary files from text files, producing a different output. Is there a way to tell binary files form text files? All I want is a yes/no answer whether a given file is binary. Because it's difficult to define binary, let's say I want to know if diff will attempt a text-based comparison. To clarify the question: I do not care if it's ASCII text or XML as long as it's text. Also, I do not want to differentiate between MP3 and JPEG files, as they're all binary.

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• How to make @BeforeClass run prior Spring TestContext loads up ?

  - by lisak

  Hey, it should be piece of cake for programmers using testNG. I have this scenario @ContextConfiguration(locations={"customer-form-portlet.xml", "classpath:META-INF2/base-spring.xml" }) public class BaseTestCase extends AbstractTestNGSpringContextTests { ... @BeforeClass public void setUpClass() throws Exception { But I'd need the spring context to be load up after @BeforeClass. I I came up with overriding AbstractTestNGSpringContextTests methods : @BeforeClass(alwaysRun = true) protected void springTestContextBeforeTestClass() throws Exception { this.testContextManager.beforeTestClass(); } @BeforeClass(alwaysRun = true, dependsOnMethods = "springTestContextBeforeTestClass") protected void springTestContextPrepareTestInstance() throws Exception { this.testContextManager.prepareTestInstance(this); } and make my method @BeforeClass(alwaysRun = true, dependsOnMethods = "setUpClass") protected void springTestContextPrepareTestClass() throws Exception { } But then I get : Caused by: org.testng.TestNGException: org.springframework.test.context.testng.AbstractTestNGSpringContextTests.springTestContextPrepareTestInstance() is not allowed to depend on protected void org.springframework.test.context.testng.AbstractTestNGSpringContextTests.springTestContextBeforeTestClass() throws java.lang.Exception Make it public also doesn't help. Could please anybody mention here if it can be done in a working manner :-) I know that I could load the testContext manually, but that wouldn't be so fancy. It works like this, but TestContextManager is not visible so I can't call prepareTestInstance() method on it : @Override @BeforeClass(alwaysRun = true, dependsOnMethods = "setUpClass") public void springTestContextPrepareTestInstance() throws Exception { }

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• Can checkboxes be removed from a .NET WinForms ListView at runtime?

  - by James

  Is it possible to remove the checkboxes from a .NET WinForms ListView control at runtime? The following code appears to have no effect when '.Checkboxes' has initially been set to 'true' and the control has rendered onto a form with checkboxes available for each list view item: // C#: testListView.BeginUpdate(); testListView.Checkboxes = false; testListView.EndUpdate(); Is there a method that must be called to enact this change? What is the use of providing the .Checkboxes property when it defaults to 'false' and only has an effect if set to 'true'?

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• J2ME private folder(only accessible to my midlet)

  - by Shankar

  I have two midlets, one will download some files form server everyday and the other uses these files. If i download the files to a normal folder the mobile user may delete the folder or files manually. So i need a private folder which is hidden and only accessible for my midlets. I heard about private folders which symbian platform provides for each application which are not accessible to users. I need such a folder for my j2me app. How to create such folder?? Shankar

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• zend framework can't find Model classes ?

  - by user284503

  Yall: I have a simple question, it might be a simple configuration issue, but I have a Model defined, and when I try to access it from a controller it fails. The Model is in the model directory, and when I look at the quickstart app, it seems like this should work. Here is my model: <?php class Application_Model_User { protected $_user; protected $_password; protected $_userId; // very simple right } ?> My controller just stops.. here is the controller code: <?php class UserController extends Zend_Controller_Action { public function init() { } public function indexAction() { // display login form $users = new Application_Model_User(); echo "test never echos.. stopped above ? weird huh.."; // fails before .. } ?> Thank you everyone,

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• BASH Install Of Wordpress, Without Visiting wp-admin/install.php

  - by user916825

  I wrote this little BASH script that creates a folder,unzips Wordpress and creates a database for a site. The final step is actually installing Wordpress, which usually involves pointing your browser to install.php and filling out a form in the GUI. I want to do this from the BASH shell, but can't figure out how to invoke wp_install() and pass it the parameters it needs: -admin_email -admin_password -weblog_title -user_name (line 85 in install.php) Here's a similar question, but in python #!/bin/bash #ask for the site name echo "Site Name:" read name # make site directory under splogs mkdir /var/www/splogs/$name dirname="/var/www/splogs/$name" #import wordpress from dropbox cp -r ~/Dropbox/Web/Resources/Wordpress/Core $dirname cd $dirname #unwrap the double wrap mv Core/* ./ rm -r Core mv wp-config-sample.php wp-config.php sed -i 's/database_name_here/'$name'/g' ./wp-config.php sed -i 's/username_here/root/g' ./wp-config.php sed -i 's/password_here/mypassword/g' ./wp-config.php cp -r ~/Dropbox/Web/Resources/Wordpress/Themes/responsive $dirname/wp-content/t$ cd $dirname CMD="create database $name" mysql -uroot -pmypass -e "$CMD" How do I alter the script to automatically run the installer without the need to open a browser?

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• Passing an array into hidden_field ROR

  - by JZ

  I'm trying to pass an array into a hidden_field. The following User has 3 roles [2,4,5] >> u = User.find_by_login("lesa") => #<User id: 5, login: "lesa", email: "[email protected]", crypted_password: "0f2776e68f1054a2678ad69a3b28e35ad9f42078", salt: "f02ef9e00d16f1b9f82dfcc488fdf96bf5aab4a8", created_at: "2009-12-29 15:15:51", updated_at: "2010-01-06 06:27:16", remember_token: nil, remember_token_expires_at: nil> >> u.roles.map(&:id) => [2, 4, 5] Users/edit.html.erb <% form_for @user do |f| -%> <%= f.hidden_field :role_ids, :value => @user.roles.map(&:id) %> When I submit my edit form, I receive an error: ActiveRecord::RecordNotFound in UsersController#update "Couldn't find Role with ID=245" How can I pass an array into the hidden_field?

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• Question on Win32 LogonUser API and the Logon Type

  - by Lalit_M

  We have developed a ASP.NET web application and has implemented a custom authentication solution using active directory as the credentials store. Our front end application uses a normal login form to capture the user name and password and leverages the Win32 LogonUser method to authenticate the user’s credentials. When we are calling the LogonUser method, we are using the LOGON32_LOGON_NETWORK as the logon type. The issue we have found is that user profile folders are being created under the C:\Users folder of the web server. The folder seems to be created when a new user who has never logged on before is logging in for the first time. As the number of new users logging into the application grows, disk space is shrinking due to the large number of new user folders getting created. Has anyone seen this behavior with the Win32 LogonUser method? Does anyone know how to disable this behavior?

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• Can DBRefs contain additional fields?

  - by Soviut

  I've encountered several situations when using MongoDB that require the use of DBRefs. However, I'd also like to cache some fields from the referenced document in the DBRef itself. {$ref:'user', $id:'10285102912A', username:'Soviut'} For example, I may want to have the username available even though the user document is referenced. This would provide me all the benefits of a single document approach; Faster querying and eliminating the need to do manual dereferencing in my code. While at the same time allowing me to use references where they make sense. The idea being that when the referenced document is updated (a user changes their name, for example) my business layer can automatically update all the documents that reference it. Ultimately, I'm wondering if it's considered good form to store additional fields on my DBRefs? Will it break anything? Will I lose my data each time a reference is rewritten? Will drivers like pymongo support it?

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• Richfaces a4j achtionparam set null value

  - by Jurgen H

  I am trying to reset some values in a form using the a4j:actionParam tag. But it seams that null values never arrive in the target bean. The converter receives it correctly, returns null, but it is never set in the bean. The target is to fill in the start and endDate for different predefined values (last week, last month etc). For the "This week" value, the endDate must be reset to null. <rich:menuItem value="Last week"> <a4j:support event="onclick" reRender="criteriaStartCalendar,criteriaEndCalendar"> <a4j:actionparam name="startDate" value="#{dateBean.lastWeekStart}" assignTo="#{targetBean.startDate}" /> <a4j:actionparam name="endDate" value="#{dateBean.lastWeekEnd}" assignTo="#{targetBean.endDate}" /> </a4j:support> </rich:menuItem>

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• Subsonic and the VB.net 2005 interop toolkit

  - by wja

  I have an application I am converting over from vb6 to vb.net 2.0/3.5. Using Subsonic 2.2 and the vb.net Interop Toolkit 2005. Cannot seem to get the .net form using subsonic to work inside the interop environment. It keeps saying it cannot find the subsonic service provider in the app.config. But I know it is there. Has anyone used these two toolkits together successfully? Will subsonic even work inside the interop environment in that way? Thanks in advance!

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• How can I use images provided by the iPhone OS?

  - by Topher Fangio

  Hello all, First, let me state what brought this question about: I saw the green checkmark icon in this post and I would like to use it in my own application. However, since it looks so much like the UITableViewCellAccessoryDetailDisclosureButton my assumption is that this green checkmark icon is provided by the iPhone OS in some form or fashion. So, my question is: how can I use the green checkmark icon and/or other OS-provided images in my own applications? As a side question: where can I find a list of the OS-provided images (if they even exist)? Thanks very much for any input :-)

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• Zend Framework: How to hide extra text field with captcha ?

  - by Awan

  I am using captcha in Zend. But When I render captcha element in view, it shows image, an field for enter text and also another field with a string in it. I want hide this text field with a string. I am creating captcha element like this in Form.php: $captcha = new Zend_Form_Element_Captcha( 'captcha', array('label' => "", 'captcha' => array( 'captcha' => 'Image', 'name' => 'myCaptcha', 'wordLen' => 5, 'timeout' => 300, 'font' => 'captchaFonts/ACME_ExplosiveBold.ttf', 'imgDir' => 'captchaImages/', 'imgUrl' => '/captchaImages/', ))); Then render this in view.phtml: $this->element->captcha Why it is showing an extra text box on browser with a string and how to hide this? Thanks.

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• Sketchflow component target parent state

  - by user186106

  Hi, I'm using Sketchflow in Expression Blend 4 RC (although this is relevant to Blend 3 too). I have a screen with a datagrid on it (MainScreen) and there's a "New" button. I have a component screen that has a generic form (GenericForm) and a "Save and close" button. I have two states on MainScreen: State1 (and default): GenericForm visibility set to Hidden State2: GenericForm visibility set to Visible The "New" button on MainScreen has: Active State = State2, meaning when the "New" button is pressed, it changes the state of MainScreen to State2 (where the GenericForm component is visible). My problem is that I cannot link the "Save and close" button on GenericForm to State1 on MainScreen. In effect I would like to be able to press "Save and close" and for the MainScreen to set its state to State1. Any ideas?

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• property not updating in object when page is posted

  - by Jared

  Hi I have set a property in a constructor like so function __construct() { $this->count = count(@$_SESSION['filearray']); //count how many files in array } and using it in condition statements if($this->count > 10) //then do something but it appears the count isn't being updated when I use another method of injecting values into this 'filearray' until I refresh the page. am I doing something wrong? I thought that my constructor would detect a change had been made in the session and whenever I call $this-count I would get the current count value but it seems to be 1 step behind until I refresh the page. If this is all vague I can include my form page that has all the method calls, but this is the jist of my question, why is my property not updating and how do I fix it :) TIA

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• Voting software with remote units - architectural questions

  - by David Neale

  I'm looking at designing some software that registers live votes (let's say A,B,C or D). The vote needs to be picked up and processed by a .NET engine. The remote voting units should be as small as possible. What form of data transmission should be used for the voting? The data is obviously very simple but there is a need to make sure each unit can only vote once per question. How would the data be received by the computer running the software?

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• Visual Studio keeps changing resx files

  - by CFP

  Hello everyone ! I'm working on a VB.Net project and using SVN. I noticed that every time I use my main form, Visual studio slightly modifies my .resx file, which means that I keep having to re-commit it, which is quite an annoying thing. Has anybody experienced such problems? A diff file can be seen at http://synchronicity.svn.sourceforge.net/viewvc/synchronicity/trunk/Create%20Synchronicity/MainForm.resx?r1=272&r2=359&pathrev=359 Has anybody ever heard of this? Thanks, CFP.

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• Need to autosave TinyMCE

  - by BFTrick

  Hello, I am looking for some help autosaving tinyMCE. I want to save the content within tiny into its respective textarea after content has been updated. So that when I make an ajax call the content is in the textarea ready to be posted. Currently I have this little bit of code but it only updates the text area when you press a button in tiny (like bold, italics, underline, etc). I also have the link where I found the code. Any help would be appreciated. $('.AjaxEdit textarea.tiny').tinymce({ //other init options //need this function to save tiny data before Ajax call //http://www.webmasterkitchen.com/article/tinymce-ajax-form-submission/ setup : function(ed) { ed.onChange.add(function(ed) { tinyMCE.triggerSave(); }); } });

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• URL Friendly regular expression

  - by Caesar

  Can anyone help me with regular expression for this: basically I have a search form and users type in whatever keywords they want to search and when a search button is clicked, the search keyword is appended to the url (see examples below). Note the keyword may contain any character. Example 1 Search key: whatever you want URL: www.example.com/search/whatever+you+want/ Example 2 Search key: oh boy! what's going on? URL: www.example.com/search/oh+boy!+what's+goin+on%3F What regular expression can I use to capture all characters in the ASCII table between 32 to 126?

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• How do I improve the efficiency of the queries executed by this generic Linq-to-SQL data access clas

  - by Lee D

  Hi all, I have a class which provides generic access to LINQ to SQL entities, for example: class LinqProvider<T> //where T is a L2S entity class { DataContext context; public virtual IEnumerable<T> GetAll() { return context.GetTable<T>(); } public virtual T Single(Func<T, bool> condition) { return context.GetTable<T>().SingleOrDefault(condition); } } From the front end, both of these methods appear to work as you would expect. However, when I run a trace in SQL profiler, the Single method is executing what amounts to a SELECT * FROM [Table], and then returning the single entity that meets the given condition. Obviously this is inefficient, and is being caused by GetTable() returning all rows. My question is, how do I get the query executed by the Single() method to take the form SELECT * FROM [Table] WHERE [condition], rather than selecting all rows then filtering out all but one? Is it possible in this context? Any help appreciated, Lee

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• "Socket operation on non-socket" error due to strange syntax

  - by Robert S. Barnes

  I ran across the error Socket operation on non-socket in some of my networking code when calling connect and spent a lot of time trying to figure out what was causing it. I finally figured out that the following line of code was causing the problem: if ((sockfd = socket( ai->ai_family, ai->ai_socktype, ai->ai_protocol) < 0)) { See the problem? Here's what the line should look like: if ((sockfd = socket( ai->ai_family, ai->ai_socktype, ai->ai_protocol)) < 0) { What I don't understand is why the first, incorrect line doesn't produce a warning. To put it another way, shouldn't the general form: if ( foo = bar() < baz ) do_something(); look odd to the compiler, especially running with g++ -Wall -Wextra? If not, shouldn't it at least show up as "bad style" to cppcheck, which I'm also running as part of my compile?

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• Variadic functions and arguments assignment in C/C++

  - by Rizo

  I was wondering if in C/C++ language it is possible to pass arguments to function in key-value form. For example in python you can do: def some_function(arg0 = "default_value", arg1): # (...) value1 = "passed_value" some_function(arg1 = value1) So the alternative code in C could look like this: void some_function(char *arg0 = "default_value", char *arg1) { ; } int main() { char *value1 = "passed_value"; some_function(arg1 = value1); return(0); } So the arguments to use in some_function would be: arg0 = "default_value" arg1 = "passed_value" Any ideas?

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• DB2 CASE Statement

  - by gamerzfuse

  I need to somehow use the CASE syntax (which is beyond me) to affect the database results based on criteria. I have a bunch of royalties in 0.# form (royalty) I have a title ID # (title_id) and I need to show the new increase in royalties so that I can use the data. IF: they have a current royalty of 0.0 - 0.1 = 10% raise IF: they have 0.11 - 0.15 = 20% raise IF: royalty >= 0.16 = 20% raise Any help would be much appreciated. create table royalites ( title_id char(6), lorange integer, hirange integer, royalty decimal(5,2));

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